Replace core language HexStrings with library entity

[Daniel Murphy via Digitalmars-d]

"Andrei Alexandrescu"  wrote in message 
news:me9s2m$308v$1 at digitalmars.com...

> It pains me to no end to see energy going in all the wrong places. Just 
> now I was reviewing some code using std.json. Most everybody admits that 
> library could be improved or rewritten. There's been some work on the 
> latter, which has not been pursued to completion. Until then, we've had 
> for _years_ a mediocre - albeit let's say passable - implementation with a 
> shockingly bad documentation - http://dlang.org/phobos/std_json.html has 
> not ONE example, like literally not ONE line of code on it. It's been like 
> that for YEARS. I'd find it difficult to imagine a simpler and more 
> impactful way to contribute to D, than improving on that documentation.

Just use vibe.d's json library.